/**
 * 
 * Copyright (C) 2011 Cody Stoutenburg . All rights reserved.
 *
 *       This program is free software; you can redistribute it and/or
 *       modify it under the terms of the GNU Lesser General Public License
 *       as published by the Free Software Foundation; either version 2.1
 *       of the License, or (at your option) any later version.
 *
 *       This program is distributed in the hope that it will be useful,
 *       but WITHOUT ANY WARRANTY; without even the implied warranty of
 *       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *       GNU Lesser General Public License for more details.
 *
 *       You should have received a copy of the GNU Lesser General Public License
 *       along with this program; if not, write to the Free Software
 *       Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. 
 * 
 */
package client;

import java.net.MalformedURLException;
import java.rmi.NotBoundException;
import java.rmi.Remote;
import java.rmi.RemoteException;

import registry.RmiRegistry;
import server.shared.ChatInterface;
import client.shared.MessageReceiver;

/**
 * @author Cody Stoutenburg
 * 
 */
public class SimpleChatClient {
	private String address;
	private MessageReceiver displayChat;
	private ChatInterface chatServer;

	public SimpleChatClient() {
	}

	private void refreshServer() {
		Remote remoteObject;
		try {
			String[] allNames = RmiRegistry.list(address);

			for (String name : allNames) {
				try {
					remoteObject = RmiRegistry.lookup(name);

					if (remoteObject instanceof ChatInterface) {
						// we find a chat server
						chatServer = (ChatInterface) remoteObject;
						if (chatServer.testServer()) {
							// break only if the server work else try again
							break;
						}
					}
				} catch (RemoteException e) {
					RmiRegistry.unbind(name); // the server is down
				}
			}
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (NotBoundException e) {
			e.printStackTrace();
		} catch (RemoteException e) {
			e.printStackTrace();
		}
	}

	public void connect(String addressIp, String port, String name) {
		this.address = "//" + addressIp + ":" + port;
		try {
			displayChat = new Calculator(name);
			refreshServer();
			chatServer.join(displayChat);
		} catch (RemoteException e) {
			e.printStackTrace();
		}
	}

	public void disconnect() {
		if (chatServer != null) {
			try {
				this.chatServer.disconnect(displayChat);
			} catch (RemoteException e) {
				refreshServer();
				try {
					this.chatServer.disconnect(displayChat);
				} catch (RemoteException e1) {
					e1.printStackTrace();
				}
			}
		}
	}
}
